Peripheries of pulleys or fly wheels



3 Sheets-Sheet l.

JQ-TANGYE'ZEv W. H. BAILEY. MAGHINBFOR FINISHING PERIPHBRIBS 0F PULLEYS 0R FLY WHEELS.

(No Model.)

No. 577,332. Patentd Feb. 16, 1897.

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Witnesses I I v a SheetsSh'eet 2. J. TANGYE & W. H. BAILEY. MACHINE FOR. FINISHING PERI S OP PULLEYS 0R FLY WHEELS.

No. 577,332. 1 P atented Feb. '16, 1897.

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J. TANGYE & W. H. BAILEY. MACHINE FOR FINISHING PER-IPHERIBS OF PULLBYS 0R FLY WHEELS.

No. 577,332. v Patented Feb. 16, 1897.

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STATES ATENT OFFICE.

ITE i l JOHN TANGYE, OFHANDSVVORTH, AND \VILLIAM HENRY BAILEY, OF SMETH- WIOK, ENGLAND, ASSIGNORS OF ONE-THIRD TO TANGYES, LIMITED, OF BIRMINGHAM, ENGLAND.

MACHlNE FOR FINISHING PERIPHERIES OF PULLEYS OR FLY-WHEELS.

SPECIFICATION forming part of Letters Patent No. 577,332, dated February 16, 1897. Application filed June 11, 1896. Serial No. 595,191. (No model.)

To aZZ whom it may concern: hollow face or-peripheryproduced by the new Be it known that we, JOHN TANGYE, of or improved finishing machinery constitut- Handsworth, and WVILLIAM HENRY BAILEY, ing our invention when the parts are in the of Smethwick, England, subjects of the positions represented in Fig. 6.

Queen of Great Britain, have invented cer- The same letters of reference indicate the v tain new and useful Improved Machinery for same parts in the several figures of the draw- Finishing or Machining the Peripheries of ings.

Pulleys or Fly-Wheels and for other Like The said new or improved machinery con- Purposes; and we do hereby declare that the sists, essentially, of a table or bed a, on which 10 following is a full, clear, and exact descripis supported and work two slides, (marked,retion of the invention, which will enable others spectivel y, b and 0,) the said slides having moskilled in the art to which it appertains to tion in planes at right angles to one another, make and use the same. being operated by the respective screws 1) Our invention consists in the construction 0, working in screw-boxes on the under sides I 5 and arrangements hereinafter described of of the slides, as is well understood. The the parts of machinery for finishing the petransverse slide 19 carries an ordinary faceripheries of metallic and non-metallic pulleys rolling cutter (I, having solid or inserted and fly-Wheels and for other like purposes, teeth, and the longitudinal slide 0 carries a the said machinery being capable of provertical spindle e, on which is fixed the pul- 20 ducing on the periphery of the pulley or flyley fto be finished or machined. The verwheel or the like a surface truly cylindrical, tical spindle e, carrying the pulley f, receives or nearly so, or a surface slightly convex or a slow rotary motion, the said rotary motion slightly concave, as hereinafter more parbeing communicated tothe pulley-spindle e ticularly described. in the following manner.

25 WVe Will describe our invention in connec Apulleygon the driving-shaftg of the mation with the finishing, or, as it is technically chine drives, by means of the belt or band i, called, the machining, of a metallic or nonthe pulley h on the second and parallel shaft metallic pulley. h. ()n the said shaft h is a friction-disk h Figures 1 and 2 of the accompanying draw against the face of which the edge of a sec- 0 ings represent in front elevation and plan, ond adjustable friction-disk 70 on a shaft 70 respectively, the new orimproved machinery at right angles to the shaft h bears (see Figs. constituting our invention, the parts of the 3 and 4) and receives rotary motion theresaid machinery being in position for producfrom. 0n the end of the shaft is is a worm ing on the periphery of the metallic pulley k gearing with a worm-wheel Z on the shaft 35 to be operated upon aconvex, or, as it is tech- Z, a worm Z on which shaft Z gears with the nically called, a crown face. Fig. 3 is an worm-wheel e on the vertical spindle e. B end elevation of the new or improved masliding the adjustable friction-disklc along chinery; and Fig. 4 is a vertical section of the shaft is it may be made to bear against thesame, the said section beingtaken through the driving friction-disk 71 at a greater or 40 the axis of the vertical spindle on which the less distance from the center of the said disk pulley to be operated upon is fixed. Fig. 5 71 and thereby rotate the pulley f at a represents the new or improved machinery greater or less speed, as desired. in plan with the parts in positionfor produc- The face-milling cutter d is driven from ing on the periphery of a pulley a cylindrical the main shaft g through the pinion 9 which 45 or approximately cylindricalsurface. Fig. 6 gears with the spur-Wheel m, on the opposite 5 represents another plan of the said new or end of the shaft of which is a second spurimproved machinery, the parts being in the wheel m gearing with the teeth on the peposition for producing on the periphery of a riphery d of the face-milling cutter d. pulleya concave or hollow face. Fig. 6 rep- WVhen for any reason it is wished to stop 50 resents in section a pulley with a concave or the machine, the handle a is turned and opmo crates through its spindle the lever a, link 71 slide or, and beltfork a, so as to throw the belt 2' onto the loose pulley When it is wished to machine or finish a pulley so as to produce on its periphery a crown or convex face, the transverse slide Z), carrying the cutter-head, is adjusted so as to bring the axis of the face-millingcutter d in line with the vertical spindle e, or so as to bring the face-milling cutter cl into such a position that the vertical spindle c is in a line situated between the axis of the face-milling cutter and the path of the cutters of the facemilling cutter, the exact position depending on the amount of eouvexit-ydesired, the maximum convexity being obtained when the spindle is in line with the axis of the face-milling cutter and the minimum convexity when the spindle c is in a line just within the path of the rotating cutters.

Figs. 1, 2, 3, and i represent the machine in position for producing crown or convex faces on pulleys of the character shown in the drawings.

\Vhen it is desired to produce on the surface of pulleys straight faces, that. is to say, to make the peripheries truly cylindrical, or approximately cylindrical, the transverse slide 1) of the cutterdlead is adjusted so as to bring the path of the rotating cutters in line with the vertical spindle c, as represented in Fig. 5, and when it is desired to produce on the periphery of a pulley a hollow or concave face, as is represented in the pulley Fig. (5, the transverse slide I) of the face-millin g cutter is adjusted so as to throw the vertical spindle 6 outside the line or path of the rotating cutters, as is represented in Fig. 6.

In order to insure that the center of curvature of the periphery of the pulley when producing crown or hollow faced pulleys shall be in the same line as the middle of the pulley, or, in other words, that the middle of the pulley in the case of orown-faced pulleys shall be of largest diameter and in the case of hollow-faced pulleys of smallest diameter, it is necessary that the middle line of the pulley shall be in the same horizontal plane as the axis of the face-milling cutter d, and for this reason the face-milling cutter is made capable of vertical adjustment to fit the machine to operate on pulleys of varying widths.

The vertical adjustment is effected as follows: A vertical screw, the axis of which is marked 17, works in a screw-box on the inner side of a vertical slide 5, the guides of which are marked 8' s, carrying the face-milling cutter. By turning the screw 12 by means of the hand-wheel q in one or other direction, acting through the bevel-pinion Q2 and bevelwheel '2', the vertical slide 5, and with it the faee-millin g cutter cl, is raised or lowered.

The application of our invention to machinery for finishing or machining lly-wheels and for other like purposes differs in no essential respect from its application to machinery for finishing or machining metallic and non-metallic pulleys, as hereinbefore de scribed.

Having now particularly described and ascertained the nature of our invention and in what manner the same is to be performed, we declare that we claim as our invention- 1. In a machine for finishing the peripheries of pulleys and other wheels the combination with a bed, a slide 0 horizontally and longitudinally movable thereon, means for moving said slide, a vertical pulley-spindle e journaled in said slide, of the slide Z1 mounted on said bed and movable transversely to the line of travel of the slide 0, a vertical milling-cutter mounted on the slide Z) at: a tangent to the rim of the pulley to be operated upon, means for adjusting said millingcutter vertically, and means for moving the slide Z7, whereby the milling-cutter is caused to impart either a concave, convex or eylindrieal shape to the periphery of the pulley, substantially in the manner specified.

2. In a machine for finishing the peripheries of pulleys and other wheels the eombination with a bed, a slide a horizontally and longitudinally movable thereon, means for moving said slide, a vertical pulley-spindle e journaled in said slide, of the slide 1) mounted on said bed and movable transversely to the line of travel of the slide 0, a slide S movably mounted on the vertical face of the slide b, means for vertically adjustii'lg the slide S, a vertical millingcutter j ourn aled in the slide S at a tangent to the pulley to be operated upon, and means for moving the slide 1) across the path traversed by the slide 0, substantially shown and described and for the purpose specified.

JOHN TANGYE. [L 5.] WILLIAM HENRI BAILEY. [1,. s] \Vitnesses:

GEORGE SHAW, RICHARD SKERRETT. 

